Spinning-frame.



D. STEVENS & G. CLARKE.

SPINNING FRAME.

APPLICATION FILED 00119, 1916.

Patented Jam. 29, 11918.

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GEURGE CLARE, 0F ESQ I O1! ESMOND, RUDE ISL 1*:

tpeoiflcatlon of Letters Patent.

asst a ooaronn'rron or Patented d ain. 9,

Application filed uctober 119, 191.6. tcrtal No. radiate.

To all wkom''t may concern?- Be it known that we, Dnx'rnn S'ravnns and Gnonon CLARKE, citizens of the United States, and residents of Esmond, in the county of Providence and State of Rhode Island, have invented new and useful llmprovements in Spinning-Frames, of which the following is aspecification.

This invention relates to spinning means adapted for spinning covered or doubled yarns, one object of the invention being to provide devices for formlng yarns havmg tWo or more components, one of .Wh1ch 1s a previously spun yarn and the other of which is a roving applied thereto by the operation of the machine of the present invention. A typical product of the machine is a yarn suitable for the fillingor Weft of woven fabrics adapted to be glgged or brushed, such as cotton blanketsand the like. One purpose of our invention is to so act upon and distribute the roving with respect to the previously spun confponent, hereinafter referred to as the core yarn, as to provide a final product characterized by improved evenness of weight per unit length and by improved adaptability to have the individ ual fibers raised or released from the surface of the yarn, after manufacture of the covered yarn and after completion of the Other objects of the invention are to provi e a ring spinning frame adapted to apply to and double with a core yarn, a roving or applied yarn subjected prior to application to a longitudinal draft of any deslred mag- Other objects are to provide for proper relative tensions'of'core and applied yarn and for associating the-yarn and the applied yarn or roving together prior to spinning proper in a manner to secure an even distribution of the roving or applied yarn with respect to the core yarn.-

lin the accompanying drawings,

Figure 1, is a vertical cross-section of so much of a ring spinning frame equipped with the new devices as is necessary to illustrate the invention.

Fig. 2 is a front shown in Fig. 1. 0

Fig. 3 is a diagram illustration of the product. a

Referring now to Flg. 1, the' frame may comprise any usual or referred spmnnn devices. As illustrated, t e spindle-1, w

elevation of the devices 2, spindle rail 3, and bolster 4, as well as the ring ra1l 5, rlng 6, and traveler 7, may be of known rm -sp1nmng construction and be provided with any suitable driving and copbulldmg devices, not sh for winding upon the bobbln 10 a cop of the fininshed yarn of the desired form and dimensions, and be provided with a rail 11 and fingerboard 12 of the usual construction. The frame comprises suitable overhead longitudlnalframe members 13, 13, etc. Longltudrnally of the support13, carrymg rolls 15 1n palrs arranged to rotate in the same dlrection serve cheeses 16 of applied rovmg r, loosely spun roving adapted to be freely drawn, with consequent loss of tensile strength and release of the bound-in ends of the cilndividual fibers of which it is compose On a support 17 usually a preferably formed as shown of bent strlos of metal conveniently attached dlrectly to, or to hearing blocks 13' supported by, the frame elements 13, 13", supports shown as pins 18 are arranged for cops 19 of core yarn As shown, the supports 17 may comprlse horizontal portions 20 extending transversely of the frame to accommodate in diderent transverse posi-- tions. a sufficient series of cops 19 to supply spindles 1 spaced at the usual distance apart, each with at least one yarn y. Preferably on the horizontal portion20 a series of pairs of tension disks 22, one pair for each yarn 3/ may be mounted.

Vertically above and a little to the rear of the position of each spindle 1, thevframe 17 supports, as on auxiliary hinged fingerboards 25, a series of pig-tail guides 26, one for each spindle through which yarns y from the cops 19 and tension disks 22 are passed, as shown. a

The longitudinal frame member 13 above each spindle 1 is provided with suitable bearing-holes for a tubular twister-head 30 having a whirl 31 adapted to be driven by a band32 from a driving roll or pulleys (not shownl)1 on a suitable longitudinal shaft (not s own). On any suitable frame member rojecting lugs 13 support concentric with said bearing holes and each twister-head 30 a depending bearing tube 32 in which the head 30 rotates and beneath which its lower end projects as shown at 30.

as supports for balls or Mounted on tube 32 a yarn guide or grip 33 terminates in ja'ws 34 near the bite or ni of secondary draft rolls 40, 40. The

frame member 13 by adjustment screws 36 e a glass 01' steel rod 37 serves as a guide for the applied roving 1' in relation to the plane of rotation of the pins 35, which may be rounded and polished at their upper free ends.

The roving 9 is drawn off from the ball 16 by primary draft rolls 39*, 39* rotated by any usual means in the direction of the arrows thereupon at a desired speed, which Is a. divisor of the peripheral speed of the drawing rolls 40 by the desired ratio to determine the extension of the roving r to be given between the. primary draft rolls and the secondary draft rolls 40, 40.

The roving r entering the twister-head 30 is given a false twist between the entrance of twister-head 30; and the primary draft rolls 39 39", by the pins 35, while the core yarn 3 passes down through twister-head 30 along side of and in contact with the roving 1'. The yarn y is combined with the roving 7' when it passes between the secondary draft rollers 40, 40.2

The spinning operation roper taking place below the secondary ro ls 40, 40, now twists the components y and r to ether as "1 illustrated for one instance in Fig. 3, in

such a manner as to leave-the fibers of the roving with but slight interlocking engagement with each other, the tensile strength of the resulting yarn Y shown in the same figure being almost wholly due to the core yarn 3 which is substantially buried in the roving. As usual in the art, the direction of twist for the spinning pro er may be such as to harden or increase t e twist of the yarn y. The position in the yarn Y of the component 3 may be varied by adjustment of the tension disks 22.

It will be observed that the roving and the core yarn are brought together at a point between the drawing elements and at a oint after the drawing of the roving has talien place, and after the false twist has been put into the roving. The above described mechanism thus makes it possible to apply a drawn roving and a core yarn one to the other, in a spinning frame which is at the same time drafting the roving.

What we claim is: p

1.- In a spinning frame for covering yarns, spinning means in combination with means for drawing the covering component only, means for leading a core component to the spinning means, and twisting means for applying the covering component to the core component operating between elements of the drawing means. 7

2. A spinning frame having in combination spinning means, widely separated primary and secondary draft rolls, means for supplying to be drawn between said draft rolls an applied roving, and means for supplying a core yarn to contactwith said applied roving only at a point relatively near to said secondary rolls, and twisting means operating on the material near the secondary draft rolls and between the primary and secondary draft rolls whereby to spin together undrawn core yarn and drawn applied rovmg.

3. A spinning frame having in combination spinning means, primary and secondary draft rolls, means for supplying directly to said secondary draft rolls a core yarn, and a twister head for applying a roving drawn between said primary and secondary rolls to the core, and delivering it to said spinning means in intimate contact with and wrapped about said core yarn.

4. A spinning. frame. having in combination spinning means, rimary and secondary draft rolls, means .or supplying to said secondary draft rolls a core yarn, and means for delivering an applied roving drawn between said primary and secondary rolls to said spinning means in intimate contact with said core yarn comprising a tubular twister-head adapted to receive said core yarn substantially in the direction of its axis of rotation, and to receive said applied roving at an angle to said direction, and means for guiding said yarn and rov-ing in said directions.

5. A spinning frame havin in combination spinning means, draft r0 ls for drawing the roving, means for imparting a false twist to the roving being drawn, and means for combining a core yarn with the roving at a point between the draft rolls but beyond the place here the drawing and false twisting of the roving takes place, whereby to spin together undrawn core yarn and drawn roving.

Signed by us at Esmond, Rhode Island, this eleventh day of October, 1916.

DEXTER STEVENS. GEORGE CLARKE. 

